99971921 is an odd 8-digits composite number following 99971920
and preceding 99971922 . In scientific notation, it is written as 9.9971921 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 84841200 positive integers (up to 99971921) that are relatively prime to 99971921.
99971921 has 8 divisors, whose sum is 115385664
The reverse of 99971921 is 12917999
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
ninety-nine million nine hundred seventy-one thousand nine hundred twenty-one
Scientific notation
9.9971921 × 10^7
Engineering notation
9.9971921 × 10^6
Prime Factorization
7 × 101 × 141403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
99971921
Product of the distinct prime numbers
The prime factorization of 99971921 is 7 × 101 × 141403.
Since it has a total of 3 prime factors.
5 , 8 , 73 , 34 , 838 , 247 , 3609 , 7462 , 89037 , 97019 , 745743 , 958284 , 7845484 , 7283039 , 94159815 , 5974308 , 329025353 , 305655250 , 7241843290 , 3476484863
n×2
199943842
n×3
299915763
n×4
399887684
n×5
499859605
n÷2
49985960.5
n÷3
33323973.666667
n÷3
24992980.25
n÷5
19994384.2
n2
9994384988430241
n3
9.9915786650693E+23
n4
9.988773129696E+31
n5
9.9859683820889E+39
2 √n
9998.5959514324
3 √n
464.11543557017
4 √n
99.992979510726
5 √n
39.808481113955
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-99971920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 99971921 can be divided by 8 positive divisors.
The sum of these divisors (counting 99971921) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111101010111001101010001
3
Ternary
20222010002200202
4
Quaternary
11331113031101
5
Quinary
201043100141
6
Senary
13530424545
8
Octal
575271521
10
Decimal
99971921
12
Duodecimal
29592155
16
Hexadecimal
5f57351
20
Vigesimal
1b4g9g1
36
Base36
1niqtt
md5
5eea2714f633617049220d22bc244ca8
sha1
8f1ebf51b2006ace36faa84547de5f911805aac6
sha256
3e94b811ac469ac375dc410d4ed1020b3fb15b76b11206849eb1f81593c41353
sha512
df69906173fb2f9efd3fa0f8d1c2cea9d10298266c247e9f6c7e3f3fb9fa8b608c2120302a345ed2ff752fc2c5789f2def8eb68db4024e3be34354c6342332f2
ripemd-160
36603c041f599c5325c7cae3555d676de4638030
Diameter
199943842
Circumference
628142105.15772
Area
3.1398286456801E+16
Volume
4.1852626842595E+24
Surface area
1.255931458272E+17
Circumference
628142105.15772
Perimeter
399887684
Area
9994384988430241
Diagonal
141381646.53469
Surface area
59966309930581446
Volume
9.9915786650693E+23
Space diagonal
173156446.50226
Perimeter
299915763
Area
4.3276956475912E+15
Altitude
86578223.251131
Surface area
4.3276956475912E+15
Volume
1.1775188381382E+23
Height
47127215.511564